名校
解题方法
1 . 已知函数
,
,
与
均在区间
上单调递增,若
的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求
的值
(2)在不等腰
中,角A,B,C所对的边分别为a,b,c,若
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e02f21112de4d27231644b4131e19c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3f16b1a7dad7086c0a6116d8eaba3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)在不等腰
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db6911e0947fb9b46b8157a5a9435cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8e5ce6c55a720a332a08c07f1a89a1.png)
您最近一年使用:0次
名校
解题方法
2 . 在
中,角
所对的边分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/db5ddb82-7955-4b86-8d68-8e2fb86ab177.png?resizew=181)
(1)判断
的形状,并加以证明;
(2)如图,
外存在一点D,使得
且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88f2599ca8b6b683e57a82699c8b1ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e1c8251a3073a1dbacb5fb3c8a818b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/db5ddb82-7955-4b86-8d68-8e2fb86ab177.png?resizew=181)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2e1947d28c3639beecd271f057c41b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffc2817fa590affb5a760a25dc65308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2022-07-04更新
|
1776次组卷
|
8卷引用:专题4-3 三角函数与解三角形典型大题归类-2
(已下线)专题4-3 三角函数与解三角形典型大题归类-2(已下线)第09讲 解三角形中解答题4种基础题型河南省濮阳市华龙区第一高级中学2022-2023学年高一下学期期中数学试题辽宁省锦州市2022-2023学年高一下学期期末数学试题山东省东明县第一中学2022-2023学年高一下学期3月月考理科数学试题河南省濮阳市华龙区第一高级中学2022-2023学年高一下学期4月月考数学试题福建省宁德市2021-2022学年高一下学期期末质量检测数学试题余弦定理、正弦定理应用举例
解题方法
3 . 在
中,角A,B,C的对边分别为a,b,c,求证:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b9eba5ebd7be168097360ef74f7419.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb98fc305cb3d29857443b8996461ce.png)
您最近一年使用:0次
解题方法
4 . 在
中,角
,
,
的对边为
,
,
,已知
.
(1)证明:
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4941cee431622f2ec46572286416dc.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd1ebb13cea4b26eb0d58fb84536ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ea513ef4c8fc4d8c31eff498740680.png)
您最近一年使用:0次
2023高三·全国·专题练习
解题方法
5 . 在
内,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8275b3a1ee3849757a5afe81bad72f2a.png)
您最近一年使用:0次
名校
解题方法
6 . 记
的内角
,
,
的对边分别为
,
,
.已知
,
.
(1)证明:
;
(2)求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c1db7a6139c79f5b48ddc6ef2d9eaa.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e071985acbaff6d458297e1488f4e1d4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022-10-11更新
|
1399次组卷
|
3卷引用:2023年普通高等学校招生星云线上统一模拟考试Ⅰ数学试卷
解题方法
7 . 在锐角
中,角A,B,C所对的边分别为a,b,c,已知
边上的高等于a.
(1)求证:
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65c630da27255d2a88eb0854b6dd2dd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f81e24376a13d648c2ed0dc73bc710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101678e608c85bd89a7e0ae80d896646.png)
您最近一年使用:0次
解题方法
8 . 已知
的内角A,B,C的对边分别为a,b,c,
.
(1)证明:
为定值;
(2)若
,
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8422e8218eb90572c9fb1cb3f194ae7b.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413323ab92f73c1eabb235731bb5c399.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f141ca47d770aee9afb69d1ce16cbf76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-01-31更新
|
435次组卷
|
3卷引用:新高考地区2022-2023学年高三下学期开学考数学试卷
名校
解题方法
9 . 已知
分别为
的三个内角
的对边,
.
(1)求A;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef1cedd1d3fa0afddff799901d914c1.png)
(1)求A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa22a8140c2f663447e1eed3abf67b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe29c42302504e7fd8577dbc7d130ac7.png)
您最近一年使用:0次
2023-01-30更新
|
589次组卷
|
3卷引用:第6章 三角(2)(A卷·知识通关练)-【单元测试】2022-2023学年高一数学分层训练AB卷(沪教版2020必修第二册)
(已下线)第6章 三角(2)(A卷·知识通关练)-【单元测试】2022-2023学年高一数学分层训练AB卷(沪教版2020必修第二册)辽宁省朝阳市建平县实验中学等校2024届高三上学期12月联考数学试题河北省唐山市开滦第二中学2023届高三上学期第三次线上考试数学试题
名校
解题方法
10 . 如图,在
中,
,点D是AC上一点,BD与CE交于点P,且
.
![](https://img.xkw.com/dksih/QBM/2021/11/11/2849256926412800/2855619107176448/STEM/3c5f8af9a3384e0399f9dc82cc8bf209.png?resizew=276)
(1)若
,求实数
的值;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621582bcf7d0260a48879ec85de19a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d9b17aa41dded42a29ca57fff523ea.png)
![](https://img.xkw.com/dksih/QBM/2021/11/11/2849256926412800/2855619107176448/STEM/3c5f8af9a3384e0399f9dc82cc8bf209.png?resizew=276)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51f84e56ca3def4d81f166c6dba5d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1d4fe64ed2769445c840ac0407be84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8e30987565d2a04c2a90af01edaa35.png)
您最近一年使用:0次
2021-11-20更新
|
540次组卷
|
3卷引用:广东省汕头市潮阳黄图盛中学2024届高三上学期校内质检(三)数学试题